Bed



FIG. 1 is a perspective view of a bed showing my new design;

FIG. 2 is a right side perspective view thereof;

FIG. 3 is a left side perspective view thereof;

FIG. 4 is a front perspective view thereof;

FIG. 5 is a rear perspective view thereof; and,

FIG. 6 is a top perspective view thereof.

The bottom of the bed not shown forms no part of the claimed design. 

The ornamental design for a bed, as shown and described. 